One day, the relationship may crack, and you will realize that you no longer want to stay with this guy. You can get away from a guy in different ways, because there are a lot of ways.
The easiest way, which, however, takes time and resourcefulness, is to gradually move away from the guy, pretending that it is not you who are leaving him, but simply time is against you. Come up with courses, overtime, whatever, just not to meet with him. It is possible that after some time you will meet him on the street with a new girlfriend.
A more "adult" and honest method is to talk to him about how your relationship is not working out and you want to leave. Explain to him what the problem is, but try not to hurt his sore points. Stay within the framework of the version "you are good, I am good, just do not agree with the characters." If a guy sees that you are in trouble, he may agree that breaking up would be the best option.
But if you are very dear to the guy, he will not agree to your departure. He will promise to correct himself and do everything to make you change your mind. Well, agree and give him a trial period of two weeks or a month. At the same time, clearly discuss your requirements: "I want to see that you …". If you have definitely decided to part with him, come up with difficult conditions. It is very possible that he himself will decide that he is not on the way with such a demanding person, and will agree to your departure.
However, there may be a guy who will go through all the trials. If that happens, take a closer look at it. Maybe he is exactly who you need, who will perform feats for you. Although it is more likely that such a man will be from the series "I was born just to be with you." The first fifteen minutes is great, then you realize that with this bore you are not on your way, but it can be difficult to get rid of him. Such people can be discouraged by the presence of an opponent. Tell him you have another one. If you are friends with a guy on social media, you can change your marital status to "engaged" and post your photo hugging a nice young man. Of course, this still needs to be found, but you can ask a friend for help. By the way, choose a more attractive man for this. It is possible that he will be very interested in you when he sees how persistent your fans are.